Purpose: Identify what metal contaminated the drinking water. And rank the metals as strongest. Procedure:
First we put FeCl2, Pb(NO3)2, ZnCl2. CuSO4, and AgNO3 into the series of 3 wells.
Then we added Aluminum,Zinc, and Iron to those 3 wells of chemicals.
We watched the reaction that took place in the wells and determined from the reactions what the contaminant was.
Data:
Rank
Metal
1
Aluminium
2
Zinc
3
Iron
4
Copper
5
Silver
Conclusion: From our data we can prove that Aluminum is the most "active" metal. Next in Zinc and Iron and so on.
Determination of a Hydrate
Purpose: The Purpose is to find the formula of the hydrate for copper (II) sulfate.
Procedure:
Measure and record the mass of the clean, dry crucible.
Measure approx. 1.5 grams of the compound in the crucible. Use a spatula to break up any large pieces of the substance by pressing the pieces against the wall of the crucible
Measure and record the mass of the crucible and compound.
Gently heat the crucible for about 10 minutes. (Hotter the better)
Turn the burner off and allow the crucible to cool for about 10-15 minutes.
When the crucible is cool enough to handle safely, record the mass of the crucible and contents.
Repeat the heating of the crucible for another 5 minutes, allow it to cool and the re-measure the mass.
Repeat until you have the 2 mass measurements that are within about 0.050 g of each other.
Data:
Compound selected for analysis
Copper (II) Sulfate
Mass of Crucible (g)
17.29 g
Mass of crucible and hydrated sample
22.50 g
Mass of Crucible and dehydrated (dry) sample - 1st weighing
20.81 g
Mass of hydrated sample
5.21
mass of crucible and dehydrated 2nd weighing
20.61
mass of crucible and dehydrated if needed
5.01
mass of dehydrated sample
24.13
mass of evaporated
1.89
This graph shows that the taller the person is, the larger their shoe will be. For example someone who is around 77-78 inches tall their shoe length is about 13. But someone who is around 66 inches tall, their shoe is about a 9. Therefore we need to bring Dirty Dawg in for questioning. I know it is him because if you plug his height into the graph it will put his shoe length right around 11 in. And that is exactly what the cops found.
I like to hunt and fish.
Drinking Water Contamination Kit
Purpose: Identify what metal contaminated the drinking water. And rank the metals as strongest.
Procedure:
First we put FeCl2, Pb(NO3)2, ZnCl2. CuSO4, and AgNO3 into the series of 3 wells.
Then we added Aluminum,Zinc, and Iron to those 3 wells of chemicals.
We watched the reaction that took place in the wells and determined from the reactions what the contaminant was.
Data:
Determination of a Hydrate
Purpose: The Purpose is to find the formula of the hydrate for copper (II) sulfate.
Procedure:
Measure and record the mass of the clean, dry crucible.
Measure approx. 1.5 grams of the compound in the crucible. Use a spatula to break up any large pieces of the substance by pressing the pieces against the wall of the crucible
Measure and record the mass of the crucible and compound.
Gently heat the crucible for about 10 minutes. (Hotter the better)
Turn the burner off and allow the crucible to cool for about 10-15 minutes.
When the crucible is cool enough to handle safely, record the mass of the crucible and contents.
Repeat the heating of the crucible for another 5 minutes, allow it to cool and the re-measure the mass.
Repeat until you have the 2 mass measurements that are within about 0.050 g of each other.
Data:
This graph shows that the taller the person is, the larger their shoe will be. For example someone who is around 77-78 inches tall their shoe length is about 13. But someone who is around 66 inches tall, their shoe is about a 9. Therefore we need to bring Dirty Dawg in for questioning. I know it is him because if you plug his height into the graph it will put his shoe length right around 11 in. And that is exactly what the cops found.